Tad Lincoln

Thomas "Tad" Lincoln III (4 April 1853-15 July 1871) was the fourth and youngest son of Abraham and Mary Todd Lincoln.

Biography
Thomas Lincoln III was born in Springfield, Illinois in 1853, the fourth and youngest son of Abraham and Mary Todd Lincoln. He was the younger brother of Robert, Edward, and William, and he was nicknamed "Tad" for wiggling like a tadpole as an infant. He had a cleft lip and palate, giving him a speech defect and uneven teeth. His brothers Edward and William both died young, and Tad survived the typhoid fever that had killed William in 1862. Lincoln was impulsive and unrestrained, and he never went to school; his numerous tutors usually quit in frustration. After his father was assassinated in 1865, Tad moved with the family to Chicago, where he died from tuberculosis in 1871.